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The Side Population (SP) analysis of GBM8401 and U-87 MG cancer cells.

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posted on 12.03.2015 by I-Chun Lai, Ping-Hsiao Shih, Chih-Jung Yao, Chi-Tai Yeh, Jacqueline Wang-Peng, Tai-Ngar Lui, Suang-En Chuang, Tsai-Shu Hu, Tung-Yuan Lai, Gi-Ming Lai

(A) The SP percentage was analyzed in GBM8401 and U-87 MG cells by Hoechst staining and flow cytometry. The cells were incubated with the absence or presence of specific inhibitor Verapamil (100 μM) for 3 h. SP assay was performed followed by staining the cells with Hoechst33342 (5 μg/ml) for 90 min. The morphology of GBM8401 (B) and U-87 MG (C) parental and SP cells were monitored and photographed after the performance of SP Flow cytometry. The SP cells were incubated in serum-free conditioned medium for 1 week and the spheroid morphology was observed. The SP cells were differentiated into non-SP (NSP) cells for long-term culture in complete serum containing medium.